Radio Shack PRO-404 User Manual

Also see for 20-404: Quick start

4FeaturesFeaturesKey Lock – lock the scanner’s keys to help preventaccidentally changing the scanner’s programming.Liquid-Crystal Display – easy to view and changeprogramming information.Flexible Antenna with BNC Connector – providesgood reception of strong local signals. You can alsoconnect an external antenna for improved reception ofdistant or weak signals.Three Power Options – power the scanner usingbatteries (rechargeable or non-rechargeable), externalAC power (using an AC adapter, not supplied), or DCpower (using a DC adapter, not supplied).Your PRO-404 scanner can receive these bands:Frequency Range Types of Transmissions29–54 MHz 10-Meter Ham, VHF Lo,6-Meter Ham108–136.9875 MHz Aircraft137–174 MHz Military Land Mobile, 2-Meter Ham, VHF Hi380–512 MHz UHF Aircraft, FederalGovernment, 70-cm Ham,UHF Standard, UHF “T”Note: See “Specifications” on page 37 for moreinformation about frequency steps.Understanding Your ScannerOnce you understand a few simple terms used in thismanual and familiarize yourself with your scanner’sfeatures, you can put the scanner to work for you.Simply determine the type of communications you wantto receive, then set the scanner to scan them.A frequency is the receiving signal location (expressedin kHz or MHz). To find active frequencies, use thesearch function or consult an online resource suchas www.radioreference.com. You can also search theService Banks, which are preset groups of frequenciescategorized by type of service.When you find a frequency, you can store it into aprogrammable memory location called a channel,FeaturesYour new PRO-404 Handheld Scanner lets you scanconventional transmissions and is preprogrammed withsearch banks of the most common frequencies usedby public service agencies. Service Banks are accessedby pressing a one-touch search key—no complicatedprogramming required.Your new scanner gives you direct access to over 25,000frequencies, including those used by police and firedepartments, ambulance services, aircraft, and amateurradio services.Your PRO-404 scanner also has these specialfeatures:Signal Stalker II – a powerful tool to rapidly detect,monitor, and store frequencies from nearby radiotransmissions.Service Banks – easily locate types of calls by searchingpreprogrammed frequencies in separate marine, fire/police, aircraft, ham, and weather banks.Display Backlight – makes the display easy to read inlow-light situations.Lock-out Function – skip over specified channels orfrequencies when scanning or searching.Ten Channel-Storage Banks – group and store 20channels in each bank (200 total channels).Tune – tune to new and unlisted frequencies startingfrom a specified frequency.SAME/FIPS Weather Alert – displays the weatherevent and sounds an alert for the specific cities orcounties you choose.Memory Backup – frequencies remain stored inmemory for an extended time even without batteries.Scan Delay – delays scanning for two seconds beforemoving to another channel in order to hear replies.Priority Channel – set the scanner to check onechannel every two seconds while scanning.Data Cloning – transfer the programmed data toanother PRO-404 scanner.